Toothbrush



FIG. 1 is a perspective view of a toothbrush.

FIG. 2 is a front view of the toothbrush.

FIG. 3 is a back view of the toothbrush.

FIG. 4 is a left side view of the toothbrush.

FIG. 5 is a right side view of the toothbrush.

FIG. 6 is a top view of the toothbrush; and,

FIG. 7 is a bottom view of the toothbrush.

The broken lines depict portions of the toothbrush that form no part of the claimed design. 

CLAIM I claim the ornamental design for a toothbrush, as shown and described. 